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我这里主要是想讲讲rac中关于node被驱逐进而导致reboot的情况。
 
首先说说rac中的心跳, 关于oracle clusterware中的心跳有两种,如下:
 
1. Disk heartbeat (voting device) - IOT
2. Network heartbeat (across the interconnect) - misscount
 
这里的disk hearbeat是指votedisk心跳,我们都知道votedisk是仲裁盘,
 
那么它到底有什么作用呢?Oracle文档有这样描述的:

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Posted in Oracle rdbms, rac & dg on 九月 25, 2011 | There are currently 3 Comments

ZHSGBK16到AL32UTF8的一点测试

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Posted in mangement, Oracle rdbms on 九月 22, 2011 | There are currently 3 Comments

极其痛苦的一次addNode for linux rac

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Posted in Oracle rdbms, rac & dg on 九月 20, 2011 | There are currently 7 Comments

cursor_sharing+outline的问题

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Posted in Oracle rdbms, troubleshooting on 九月 19, 2011 | There are currently 2 Comments

library cache pin&lock (1)

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Posted in mangement, Oracle rdbms on 九月 15, 2011 | There are currently 3 Comments

不完全详解os block header

什么是os block header?它有哪些作用?如果它损害了怎么办? 下面是关于os block head […]

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Posted in oracle internal, Oracle rdbms on 九月 5, 2011 | There are currently 5 Comments

关于index的监控

从上面我们可以发现,如果index被重建,那 […]

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Posted in mangement, Oracle rdbms on 九月 4, 2011 | There are currently 1 Comment

11gR2 新特性之一—Flashback archive data增强

该特性是11gR1就引入了,只是在11gR1中限制太多,本文主要是讲解11gR2中关于该特性 所增加的一些功能 […]

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Posted in 11gR2, Oracle rdbms on 九月 3, 2011 | There are currently No Comments

11gR2 新特性之—In-Memory Parallel execution

该特性是在oracle 11gR2 引入,其目的不言而喻。在11gR2之前,也就是在11gR1中, 如果当你发 […]

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Posted in 11gR2, Oracle rdbms on 九月 3, 2011 | There are currently 2 Comments

10.2.0.4+版本PSU以及相关bundle patch列表

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Posted in mangement, Oracle rdbms on 九月 1, 2011 | There are currently 6 Comments

oracle Database PSU-CPU Cross-Reference List

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Posted in mangement, Oracle rdbms on 九月 1, 2011 | There are currently No Comments

缓解ora-04031的一种方法

关于ora-04031错误,已经是老生常谈的问题了。我这里主要描述一种另外一种方式 来说缓解该错误,不过通常不 […]

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Posted in mangement, Oracle rdbms on 八月 31, 2011 | There are currently 1 Comment

ora-600 4000恢复一例

下午一个同事遇到经典的ora-600 4000错误,我远程帮忙处理了一下,关于该错误的处理, 网上已经有不少的 […]

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Posted in backup & rcovery, Oracle rdbms on 八月 30, 2011 | There are currently 1 Comment

full text index 探秘(1)

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Posted in mangement, Oracle rdbms on 八月 28, 2011 | There are currently 3 Comments

11g 新特性之–query result cache(3)

前面2篇文章分别讲了query cache的使用以及探秘其内存结构等等,最后一篇将讲讲 11gR2中,quer […]

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Posted in 11gR2, Oracle rdbms on 八月 20, 2011 | There are currently 1 Comment

11g 新特性之–query result cache(2)

在11g 新特性之–query result cache 的第一篇文章中,我讲述该特性的使用以及相 […]

Posted in 11gR2, Oracle rdbms on 八月 20, 2011 | There are currently 2 Comments

解密dbms_rowid -for 10g

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Posted in oracle internal, Oracle rdbms on 八月 15, 2011 | There are currently 3 Comments

比较BT的一个one-off patch

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Posted in mangement, Oracle rdbms on 八月 12, 2011 | There are currently 6 Comments

11g新特性之–Query Cache Result 研究

该特性是11gR1引入的,关于query result cache特性,主要有2种: 1. PL/SQL Fu […]

Posted in 11gR2, Oracle rdbms on 七月 31, 2011 | There are currently 5 Comments

bootstrap$核心对象数据不一致导致ORA-08102

昨天准备研究11g的query cache result 特性,准备用10g的老方法来直接通过 show pa […]

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Posted in oracle internal, Oracle rdbms on 七月 30, 2011 | There are currently 10 Comments
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